I have heard that a little algae is a sign of a healthy tank. However, it is not the most attractive feature of an aquarium. I usually use a soft algae cloth but, for reasons of efficiency and to minimize disruption to fish, I purchased a magnetic algae cleaner for my biOrb.

Unfortunately, I have had no success with this product. Maybe my technique is wrong! The magnetic cleaner simply smeared the algae. I think I will have to go back to getting my hands wet!